xdprxss_zcu102_pt_dp14.c File Reference

Overview

This file contains a design example using the XDpSs driver in single stream (SST) transport mode to demonstrate Pass-through design.

MODIFICATION HISTORY:

Ver  Who Date     Changes



1.00 KI 04/01/18 Initial release.

Functions
int	I2cMux_Ps (u8 mux)
	This function is the main entry point for the design example using the XDpRxSs driver. More...
u32	DpSs_VideoPhyInit (u16 DeviceId)
	This function configures Video Phy. More...
u32	CalcStride (XVidC_ColorFormat Cfmt, u16 AXIMMDataWidth, XVidC_VideoStream *StreamPtr)
	This function calculates the stride. More...
int	VideoFMC_Init (void)
	This function initializes VFMC. More...
int	main ()
	This is the main function for XDpRxSs interrupt example. More...
void	PHY_Two_byte_set (XVphy *InstancePtr, u8 Rx_to_two_byte, u8 Tx_to_two_byte)
	This function sets GT in 16-bits (2-Byte) or 32-bits (4-Byte) mode. More...
void	PLLRefClkSel (XVphy *InstancePtr, u8 link_rate)
	This function sets proper ref clk frequency and line rate. More...
char	XUartPs_RecvByte_NonBlocking ()
	This function is a non-blocking UART return byte. More...
void	CustomWaitUs (void *InstancePtr, u32 MicroSeconds)
	This function is called when DisplayPort Subsystem core requires delay or sleep. More...
void	CalculateCRC (void)
	This function Calculates CRC values of Video components. More...
void	I2C_Scan (u32 BaseAddress)
	This function scans VFMC- IIC. More...
u8	i2c_read_dp141 (u32 I2CBaseAddress, u8 I2CSlaveAddress, u16 RegisterAddress)
	This function reads DP141 VFMC- IIC. More...
u32	DpSs_PlatformInit (void)
	This function initialize required platform specific peripherals. More...
u32	DpSs_SetupIntrSystem (void)
	This function sets up the interrupt system so interrupts can occur for the DisplayPort TX Subsystem core. More...
int	TI_LMK03318_PowerDown (u32 I2CBaseAddress, u8 I2CSlaveAddress)
	This function puts the TI LMK03318 into sleep. More...
int	TI_LMK03318_SetRegister (u32 I2CBaseAddress, u8 I2CSlaveAddress, u8 RegisterAddress, u8 Value)
	This function send a single byte to the TI LMK03318. More...
int	ConfigFrmbuf_wr (u32 StrideInBytes, XVidC_ColorFormat Cfmt, XVidC_VideoStream *StreamPtr)
	This function configures Frame BufferWr for defined mode. More...
int	ConfigFrmbuf_rd (u32 StrideInBytes, XVidC_ColorFormat Cfmt, XVidC_VideoStream *StreamPtr)
	This function configures Frame Buffer for defined mode. More...
void	remap_set (XV_axi4s_remap *remap, u8 in_ppc, u8 out_ppc, u16 width, u16 height, u8 color_format)
	This function sets parameters for remap IP. More...

Variables
u32	offset_rd = 0
	This function configures Frame Buffer for defined mode. More...
u32	appx_fs_dup = 0
	This function is the callback function for when a training lost interrupt occurs. More...

Function Documentation

u32 CalcStride	(	XVidC_ColorFormat	Cfmt,
		u16	AXIMMDataWidth,
		XVidC_VideoStream *	StreamPtr
	)

This function calculates the stride.

Returns

stride in bytes

void CalculateCRC

(

void

)

This function Calculates CRC values of Video components.

Parameters

None.

Returns

None.

Note

None.

References CustomWaitUs(), XDpRxSs::DpPtr, XDpRxSs_UsrOpt::LaneCount, and XDpRxSs::UsrOpt.

int ConfigFrmbuf_rd	(	u32	StrideInBytes,
		XVidC_ColorFormat	Cfmt,
		XVidC_VideoStream *	StreamPtr
	)

This function configures Frame Buffer for defined mode.

Returns

XST_SUCCESS if init is OK else XST_FAILURE

int ConfigFrmbuf_wr	(	u32	StrideInBytes,
		XVidC_ColorFormat	Cfmt,
		XVidC_VideoStream *	StreamPtr
	)

This function configures Frame BufferWr for defined mode.

Returns

XST_SUCCESS if init is OK else XST_FAILURE

void CustomWaitUs	(	void *	InstancePtr,
		u32	MicroSeconds
	)

This function is called when DisplayPort Subsystem core requires delay or sleep.

It provides timer with predefined amount of loop iterations.

Parameters

InstancePtr

is a pointer to the XDp instance.

Returns

None.

Referenced by CalculateCRC(), and DpRxSs_SetupIntrSystem().

u32 DpSs_PlatformInit

(

void

)

This function initialize required platform specific peripherals.

Parameters

None.

Returns

• XST_SUCCESS if required peripherals are initialized and configured successfully.
• XST_FAILURE, otherwise.

Note

None.

References I2C_IDT8N49_ADDR, and VideoFMC_Init().

u32 DpSs_SetupIntrSystem

(

void

)

This function sets up the interrupt system so interrupts can occur for the DisplayPort TX Subsystem core.

The function is application-specific since the actual system may or may not have an interrupt controller. The DPTX Subsystem core could be directly connected to a processor without an interrupt controller. The user should modify this function to fit the application.

Parameters

None

Returns

• XST_SUCCESS if interrupt setup was successful.
• A specific error code defined in "xstatus.h" if an error occurs.

Note

None.

References DpRxSs_SetupIntrSystem(), and XDpRxSs_DpIntrHandler().

u32 DpSs_VideoPhyInit

(

u16

DeviceId

)

This function configures Video Phy.

Parameters

None.

Returns

• XST_SUCCESS if Video Phy configured successfully.
• XST_FAILURE, otherwise.

Note

None.

References PHY_Two_byte_set(), and PLLRefClkSel().

u8 i2c_read_dp141	(	u32	I2CBaseAddress,
		u8	I2CSlaveAddress,
		u16	RegisterAddress
	)

This function reads DP141 VFMC- IIC.

Parameters

None.

Returns

None.

Note

None.

void I2C_Scan

(

u32

BaseAddress

)

This function scans VFMC- IIC.

Parameters

None.

Returns

None.

Note

None.

int I2cMux_Ps

(

u8

mux

)

This function is the main entry point for the design example using the XDpRxSs driver.

This function will setup the system with interrupts handlers.

Parameters

DeviceId

is the unique device ID of the DisplayPort RX Subsystem core.

Returns

• XST_FAILURE if the system setup failed.
• XST_SUCCESS should never return since this function, if setup was successful, is blocking.

Note

If system setup was successful, this function is blocking in order to illustrate interrupt handling taking place for different types interrupts. Refer xdprxss.h file for more info.

References I2C_MUX_ADDR.

int main

(

void

)

This is the main function for XDpRxSs interrupt example.

If the DpRxSs_Main function which setup the system succeeds, this function will wait for the interrupts.

Parameters

None.

Returns

• XST_FAILURE if the interrupt example was unsuccessful.

Note

Unless setup failed, main will never return since DpRxSs_Main is blocking (it is waiting on interrupts).

void PHY_Two_byte_set	(	XVphy *	InstancePtr,
		u8	Rx_to_two_byte,
		u8	Tx_to_two_byte
	)

This function sets GT in 16-bits (2-Byte) or 32-bits (4-Byte) mode.

Parameters

InstancePtr

is a pointer to the Video PHY instance.

Returns

None.

Note

None.

Referenced by DpSs_VideoPhyInit(), and DpTxSs_VideoPhyInit().

void PLLRefClkSel	(	XVphy *	InstancePtr,
		u8	link_rate
	)

This function sets proper ref clk frequency and line rate.

Parameters

InstancePtr

is a pointer to the Video PHY instance.

Returns

None.

Note

None.

void remap_set	(	XV_axi4s_remap *	remap,
		u8	in_ppc,
		u8	out_ppc,
		u16	width,
		u16	height,
		u8	color_format
	)

This function sets parameters for remap IP.

Returns

None

int TI_LMK03318_SetRegister	(	u32	I2CBaseAddress,
		u8	I2CSlaveAddress,
		u8	RegisterAddress,
		u8	Value
	)

This function send a single byte to the TI LMK03318.

Parameters

I2CBaseAddress	is the baseaddress of the I2C core.
I2CSlaveAddress	is the 7-bit I2C slave address.

Returns

• XST_SUCCESS Initialization was successful.
• XST_FAILURE I2C write error.

Note

None.

Referenced by TI_LMK03318_Init(), and TI_LMK03318_PowerDown().

int VideoFMC_Init

(

void

)

This function initializes VFMC.

Parameters

None.

Returns

None.

Note

None.

References I2C_IDT8N49_ADDR, I2C_LMK03318_ADDR, I2C_MUX_ADDR, I2C_VFMCEXP_0_ADDR, I2C_VFMCEXP_1_ADDR, IDT_8T49N24x_Init(), and TI_LMK03318_PowerDown().

char XUartPs_RecvByte_NonBlocking

(

void

)

This function is a non-blocking UART return byte.

Parameters

None.

Returns

None.

Note

None.

Referenced by xil_getc().

Variable Documentation

u32 appx_fs_dup = 0

This function is the callback function for when a training lost interrupt occurs.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

u32 offset_rd = 0

This function configures Frame Buffer for defined mode.

Returns

XST_SUCCESS if init is OK else XST_FAILURE